Jquery 使用cypress访问iframe中的元素时出错

我是cypress/javascript/jquery的新手，非常感谢您的帮助！我正在尝试一种使用cypress访问iframe中的元素的方法，这里建议使用：。我在.its命令中遇到了一个cypress错误，随后在getInDocument自定义命令中出现了错误

这是测试中html代码的摘录：

<iframe id="iframeDiag" style="width:100%;height:100%;border:none;padding:0px;z-index:1001;" src="https://<snip>">
#document
<snip>
<button _ngcontent-c11="" class="btn btn-md pointer btn-primary" type="button">Next</button>
<snip>
</iframe>

.get是成功的。.its存在以下错误：

cypress_runner.js:126133 Uncaught TypeError: Cannot convert object to primitive value
at baseToString (cypress_runner.js:126133)
at toString (cypress_runner.js:134455)
at Function.trim (cypress_runner.js:136853)
at cypress_runner.js:157797
at cypress_runner.js:126802
at baseForOwn (cypress_runner.js:124887)
at cypress_runner.js:126771
at Function.forEach (cypress_runner.js:131239)
at Object._logValues (cypress_runner.js:157794)
at Object.logFormatted (cypress_runner.js:157783)
at EventEmitter. (cypress_runner.js:157457)
at EventEmitter.emit (cypress_runner.js:121451)
at EventEmitter. (cypress_runner.js:101916)
at EventEmitter.emit (cypress_runner.js:121451)
at Object.emit (cypress_runner.js:101958)
at Object. (cypress_runner.js:100786)

我应该关注打字错误吗？从表面上看，这似乎是一个cypress错误，但我意识到这可能是正在测试的应用程序代码

或者可以忽略这一点，转而关注.getInDocument命令中的选择器

---

任何帮助都将不胜感激！谢谢

事实上，我认为有效的东西没有用。为了防止有人发现问题，我们会继续尝试。我不能相信这种方法的创始人，因为我不记得是从哪里得到的（从兔子洞里钻出来的！）：

---

我确实收到了可访问性冲突，因此axe正在工作，但iframe中没有任何内容（iframe中确实存在冲突）。

事实上，我认为有效的东西没有。为了防止有人发现问题，我们会继续尝试。我不能相信这种方法的创始人，因为我不记得是从哪里得到的（从兔子洞里钻出来的！）：

我确实收到了可访问性冲突，因此axe正在工作，但iframe中没有任何内容（iframe中确实存在冲突）

cypress_runner.js:126133 Uncaught TypeError: Cannot convert object to primitive value
at baseToString (cypress_runner.js:126133)
at toString (cypress_runner.js:134455)
at Function.trim (cypress_runner.js:136853)
at cypress_runner.js:157797
at cypress_runner.js:126802
at baseForOwn (cypress_runner.js:124887)
at cypress_runner.js:126771
at Function.forEach (cypress_runner.js:131239)
at Object._logValues (cypress_runner.js:157794)
at Object.logFormatted (cypress_runner.js:157783)
at EventEmitter. (cypress_runner.js:157457)
at EventEmitter.emit (cypress_runner.js:121451)
at EventEmitter. (cypress_runner.js:101916)
at EventEmitter.emit (cypress_runner.js:121451)
at Object.emit (cypress_runner.js:101958)
at Object. (cypress_runner.js:100786)

it ('Checking Accessibility', () => {
    // inject axe into iframes
    cy.window()
    .then((win) => {
        var iframe = win.document.getElementsByTagName('iframe')[0];
        console.log('Inject axe into iframe '+iframe.id);
        var script = iframe.contentWindow.document.createElement("script");
        script.src = '../js/axe.min.js';
        script.type = 'text/javascript';
        iframe.contentWindow.document.body.appendChild(script);
        //wait(6000);
        const axe = require('axe-core');
        return win.axe.run(iframe, { iframes: true} );
    })
    .then(({ violations }) => {
        if (violations.length) {
            cy.wrap(violations, { log: false }).each(v => {
                Cypress.log({
                    name: 'a11y error!',
                    consoleProps: () => v,
                    message: `${v.id} on ${v.nodes.length} Node${
                        v.nodes.length === 1 ? '' : 's'
                        }`
                })  
            })
        }
      return cy.wrap(violations, { log: false })
    })
    .then(violations => {
        assert.equal(
            violations.length,
            0,
            `${violations.length} accessibility violation${
            violations.length === 1 ? '' : 's'
            } ${violations.length === 1 ? 'was' : 'were'} detected`
        )
    })
});